{"endpoint":"/v3/market-brief","method":"POST","content_type":"application/json","inputSchema":{"type":"object","required":["region","horizon_hours","use_case"],"properties":{"region":{"type":"string","example":"DE-LU"},"horizon_hours":{"type":"integer","minimum":1,"maximum":48},"use_case":{"type":"string","enum":["compute","depin","battery","trading"]}},"additionalProperties":false},"requestExample":{"region":"DE-LU","horizon_hours":24,"use_case":"trading"}}